Segmented rubber capsule visual compensator testing device

Abstract

The invention discloses a sectional type rubber capsule visual compensator test device, which belongs to the technical field of compensator action test and comprises a transparent liquid cavity end cover, a transparent barrel, a transparent partition plate, a transparent air cavity end cover, a liquid cavity metal end cover, an air cavity metal end cover, a liquid cavity pressing plate, an air cavity pressing plate, a screw rod, a nut, a rubber capsule, a filling pipe and a cushion cap. According to the invention, visual test verification can be carried out on rubber capsule deformation modes and compensator suction-extrusion performance parameters under different flow channel arrangements, different capsule shapes and different air cavity inflation pressures.

Description

Technical Field

[0001] This invention belongs to the field of compensator action testing technology, and particularly relates to a segmented rubber bladder visual compensator testing device. Background Technology

[0002] Compensators are pressure-stabilizing components used in spacecraft thermal control fluid circuits or liquid pipeline systems with fluid working fluid heat capacity requirements. Their compensation function relies on the deformation of internal moving parts to automatically balance the volume and pressure of the gas and liquid chambers. This component also serves as an isolation part for the working fluid in the gas and liquid chambers. In the bladder-type compensator, the rubber bladder is a key component with repeated movements. Its deformation mode is crucial to the extrusion efficiency, service life, and reliability of the compensator. The deformation mode of the rubber bladder is closely related to the shape of the bladder itself and the arrangement of the gas and liquid chamber flow channels. Moreover, as rubber is a hyperelastic material, it is difficult to accurately predict the deformation of the rubber bladder through simulation methods, and it is impossible to monitor the deformation state of the bladder through displacement sensors. Summary of the Invention

[0003] The technical problem solved by this invention is to overcome the shortcomings of the prior art and propose a segmented rubber bladder visualization compensator test device, which can visualize and verify the deformation mode of the rubber bladder and the suction-extrusion performance parameters of the compensator under different flow channel arrangements, different bladder shapes, and different air chamber inflation pressures.

[0004] The objective of this invention is achieved through the following technical solution: A segmented rubber bladder visual compensator testing device, comprising: a transparent liquid cavity end cap, a transparent cylinder, a transparent partition, a transparent air cavity end cap, a liquid cavity metal end cap, an air cavity metal end cap, a liquid cavity pressure plate, an air cavity pressure plate, a screw, a nut, a rubber bladder, a filling tube, and a gasket; wherein, the transparent liquid cavity end cap is connected to the liquid cavity metal end cap; the air cavity metal end cap is connected to the transparent air cavity end cap; the transparent liquid cavity end cap and the liquid cavity metal end cap together press and fix the flange of the rubber bladder to form a seal; the transparent liquid cavity end cap presses against the bottom of the transparent cylinder. The top of the transparent cylinder presses against one side of the transparent partition, and the bottom of the transparent air chamber end cap presses against the other side of the transparent partition; the liquid chamber pressure plate presses against the transparent liquid chamber end cap, and the air chamber pressure plate presses against the transparent air chamber end cap; one end of the screw passes through the liquid chamber pressure plate and the air chamber pressure plate in sequence and is connected to the nut; the rubber bladder is arranged in the inner cavity formed by the liquid chamber metal end cap, the transparent liquid chamber end cap, the transparent cylinder, and the transparent partition; one end of the filling tube is connected to the liquid chamber metal end cap, and the other end of the filling tube is connected to the transparent partition through the gasket.

[0005] The above-mentioned segmented rubber bladder visual compensator test device further includes: a first sealing ring and a second sealing ring; wherein, both the first sealing ring and the second sealing ring are disposed between the transparent liquid cavity end cap and the transparent cylinder.

[0006] The above-mentioned segmented rubber bladder visual compensator test device further includes: screws; wherein, the transparent liquid cavity end cap is connected to the liquid cavity metal end cap by the screws.

[0007] In the above-mentioned segmented rubber bladder visual compensator test device, the air chamber metal end cap includes an end cap housing, a welded connecting nozzle, a rotating nut, a pin, a ejector pin, a valve core, and a spring; wherein, the welded connecting nozzle is connected to one side of the end cap housing; the rotating nut is connected to the ejector pin via the pin; the rotating nut is connected to the top of the end cap housing, and the ejector pin is inserted into the end cap housing; the valve core and the spring are both installed in the groove of the end cap housing, and the valve core and the spring are pressed together.

[0008] In the above-mentioned segmented rubber bladder visual compensator test device, the air chamber metal end cap further includes a third sealing ring; wherein, the third sealing ring is sleeved on the outer surface of the ejector pin, and the third sealing ring is located between the ejector pin and the end cap housing.

[0009] In the above-mentioned segmented rubber bladder visual compensator test device, the air chamber metal end cap further includes a fourth sealing ring; wherein, the fourth sealing ring is located in the groove of the end cap housing, and the fourth sealing ring is disposed between the valve core and the end cap housing.

[0010] In the above-mentioned segmented rubber bladder visual compensator test device, the air chamber metal end cap further includes a gasket and a retaining ring; wherein, the gasket and the retaining ring are both disposed at the bottom of the spring, and the gasket and the retaining ring serve as the support and installation limit of the spring.

[0011] In the above-mentioned segmented rubber bladder visual compensator test device, the transparent liquid cavity end cap is aligned with the transparent cylinder, the transparent cylinder is aligned with the transparent partition, and the transparent partition is aligned with the transparent air cavity end cap.

[0012] In the above-mentioned segmented rubber bladder visual compensator test device, the air chamber metal end cap is fixed by a flange arranged in the gap between the air chamber pressure plate and the transparent air chamber end cap.

[0013] In the above-mentioned segmented rubber bladder visual compensator test device, the inner cavity of the rubber bladder is the compensator liquid cavity, the inner cavity formed by the outer surface of the rubber bladder, the transparent liquid cavity end cap, the transparent cylinder, the transparent air cavity end cap, and the air cavity metal end cap is the compensator air cavity, and the transparent partition is arranged with gas flow channels penetrating both sides of the partition.

[0014] Compared with the prior art, the present invention has the following advantages: (1) The present invention uses plexiglass with transparent properties as the shell of the test device, so that the deformation pattern of the rubber bladder can be directly observed visually during the test; (2) The present invention adopts a segmented structure, which simplifies the structure of the parts made of plexiglass and solves the problem that the large-size integrated complex structure is prone to structural damage and cracking due to excessive residual stress when made of plexiglass. The proportion of transparent parts is high and the viewing angle is large. (3) The compensator air chamber of the present invention is equipped with a pin inflation valve, which can be opened and closed by simple manual operation to realize the vacuuming and filling of the compensator air chamber with gas media of different pressures, to verify the compensator suction-extrusion performance parameters under different initial air chamber filling pressures, and can also be used as a medium channel for real-time monitoring of air chamber pressure during the test. Attached Figure Description

[0015] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 This is a schematic diagram of the structure of the visual compensator testing device provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the air cavity metal end cap structure provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the transparent partition structure provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the air cavity and liquid cavity space provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the filling tube structure provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the ejector pin structure provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of the valve core structure provided in an embodiment of the present invention. Detailed Implementation

[0016] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the structure of the visual compensator testing device provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the air cavity metal end cap structure provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the transparent partition structure provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the air cavity and liquid cavity space provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the filling tube structure provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the ejector pin structure provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of the valve core structure provided in an embodiment of the present invention.

[0018] like Figure 1 As shown, this embodiment provides a segmented rubber bladder visual compensator test device, which includes: a transparent liquid cavity end cap 1, a transparent cylinder 2, a transparent partition 3, a transparent air cavity end cap 4, a liquid cavity metal end cap 5, an air cavity metal end cap 6, a liquid cavity pressure plate 7, an air cavity pressure plate 8, a screw 9, a nut 13, a rubber bladder 14, a filling tube 15, and a gasket 16; wherein, the transparent liquid cavity end cap 1 is connected to the liquid cavity metal end cap 5; the air cavity metal end cap 6 is connected to the transparent air cavity end cap 4; the transparent liquid cavity end cap 1 and the liquid cavity metal end cap 5 together press and fix the flange of the rubber bladder 14 to form a seal ... are connected to the liquid cavity metal end cap 5, and the liquid cavity metal end cap 6 is connected to the liquid cavity metal end cap 4. The bottom of the transparent cylinder 2 is pressed against each other, the top of the transparent cylinder 2 is pressed against one side of the transparent partition 3, and the bottom of the transparent air chamber end cap 4 is pressed against the other side of the transparent partition 3; the liquid chamber pressure plate 7 is pressed against the transparent liquid chamber end cap 1, and the air chamber pressure plate 8 is pressed against the transparent air chamber end cap 4; one end of the screw 9 passes through the liquid chamber pressure plate 7 and the air chamber pressure plate 8 in sequence and is connected to the nut 13; the rubber bladder 14 is arranged in the inner cavity formed by the liquid chamber metal end cap 5, the transparent liquid chamber end cap 1, the transparent cylinder 2 and the transparent partition 3; one end of the filling tube 15 is connected to the liquid chamber metal end cap 5, and the other end of the filling tube 15 is connected to the transparent partition 3 through the gasket 16.

[0019] The segmented rubber bladder visual compensator test device also includes: a first sealing ring 10 and a second sealing ring 11; wherein, the first sealing ring 10 and the second sealing ring 11 are both disposed between the transparent liquid cavity end cap 1 and the transparent cylinder 2.

[0020] The segmented rubber bladder visual compensator test device also includes: screw 12; wherein, the transparent liquid cavity end cap 1 is connected to the liquid cavity metal end cap 5 by screw 12.

[0021] like Figure 2 As shown, the segmented rubber bladder visual compensator test device further includes: an air chamber metal end cap 6 comprising an end cap housing 6a, a welded connecting nozzle 6b, a rotating nut 6c, a pin 6d, a ejector pin 6e, a valve core 6h, and a spring 6i; wherein, the welded connecting nozzle 6b is connected to one side of the end cap housing 6a; the rotating nut 6c is connected to the ejector pin 6e via the pin 6d; the rotating nut 6c is connected to the top of the end cap housing 6a, and the ejector pin 6e is inserted into the end cap housing 6a; the valve core 6h and the spring 6i are both installed in the groove of the end cap housing 6a, and the valve core 6h and the spring 6i are pressed together.

[0022] The air chamber metal end cap 6 also includes a third sealing ring 6f; wherein the third sealing ring 6f is sleeved on the outer surface of the ejector pin 6e, and the third sealing ring 6f is located between the ejector pin 6e and the end cap housing 6a.

[0023] The air chamber metal end cap 6 also includes a fourth sealing ring 6g; wherein the fourth sealing ring 6g is located in the groove of the end cap housing 6a, and the fourth sealing ring 6g is disposed between the valve core 6h and the end cap housing 6a.

[0024] The air chamber metal end cap 6 also includes a gasket 6j and a retaining ring 6k; wherein, the gasket 6j and the retaining ring 6k are both located at the bottom of the spring 6i, and the gasket 6j and the retaining ring 6k serve as support and installation limit for the spring.

[0025] The transparent liquid cavity end cap is aligned with the transparent cylinder, the transparent cylinder is aligned with the transparent partition, and the transparent partition is aligned with the transparent air cavity end cap.

[0026] The metal end cap of the air chamber is fixed by a flange arranged in the gap between the air chamber pressure plate and the transparent air chamber end cap.

[0027] like Figure 4 As shown, the inner cavity of the rubber bladder is the compensator liquid cavity, and the inner cavity formed by the outer surface of the rubber bladder, the transparent liquid cavity end cap, the transparent cylinder, the transparent air cavity end cap, and the air cavity metal end cap is the compensator air cavity. The transparent partition is provided with gas flow channels that penetrate both sides of the partition.

[0028] The transparent liquid chamber end cap 1 and the liquid chamber metal end cap 5 are connected by the screw 12. During connection, the flange of the capsule 14 is simultaneously pressed and fixed to form a seal. The transparent liquid chamber end cap 1 and the transparent cylinder 2, the transparent cylinder 2 and the transparent partition 3, and the transparent partition 3 and the transparent gas chamber end cap 4 are all aligned through the outer stop. The leakage of the medium inside the compensator to the outside is prevented by arranging double non-metallic end face seals on the docking plane. The liquid chamber pressure plate 7 and the gas chamber pressure plate 8 arranged at the upper and lower ends of the test device are pressed and fixed by the screw 9 and the nut 13. The gas chamber metal end cap 6 is connected to the transparent gas chamber end cap 4 through a plunger structure. The plunger is arranged with double non-metallic radial seals. The sealing ring 6f prevents leakage of the medium inside the compensator to the outside. The gas chamber metal end cap 6 is fixed by a flange arranged in the gap between the gas chamber pressure plate 8 and the transparent gas chamber end cap 4. The capsule 14 is arranged in the inner cavity surrounded by the liquid chamber metal end cap 5, the transparent liquid chamber end cap 1, the transparent cylinder 2, and the transparent partition 3. It is fixed by connecting the liquid chamber metal end cap 5 and the gasket 16 at both ends of the filling pipe 15. The inner cavity of the capsule 14 is the liquid cavity of the compensator. The inner cavity surrounded by the outer surface of the capsule 14, the transparent liquid chamber end cap 1, the transparent cylinder 2, the transparent gas chamber end cap 4, and the gas chamber metal end cap 6 is the gas chamber of the compensator. The transparent partition 3 is provided with gas flow channels penetrating both sides of the partition (e.g., gas flow channels through the partition). Figure 3 (As shown).

[0029] In the above-mentioned segmented rubber bladder visual compensator test device, a pin inflation valve is arranged on the metal end cap 6 of the air chamber. The pin inflation valve shares the end cap housing 6a with the metal end cap 6 of the air chamber. The inflation valve includes the end cap housing 6a, a welded connector 6b, a rotating nut 6c, a pin 6d, a pin 6e, sealing rings 6f and 6g, a valve core 6h, a spring 6i, a gasket 6j, and a retaining ring 6k. The welded connector 6b is connected to the end cap housing 6a by welding to serve as an inflation air source interface. The rotating nut 6c and the pin 6e are connected by the pin 6d. The rotating nut 6c and the pin 6d are connected by threads. The ejector pin 6e is connected to the pin 6d by a small clearance fit. The rotating nut 6c is connected to the end cap housing 6a by threads. The ejector pin 6e is inserted into the end cap housing 6a. The two sealing rings 6f are compressed to prevent the medium from leaking to the outside during inflation. The valve core 6h is installed in the end cap housing 6a. The pre-compression of the spring 6i presses the sealing ring 6g to prevent the medium in the air chamber from leaking to the outside after the ejector pin 6e is withdrawn. The gasket 6j and the retaining ring 6k serve as spring support and installation limit.

[0030] In the above-mentioned segmented rubber bladder visual compensator test device, the filling tube 15 is a hollow column structure with multiple radial openings arranged along the axis of the filling tube. In order to preserve the structural strength of the filling tube, the openings are arranged in a staggered manner.

[0031] The transparent liquid cavity end cap 1 is connected to the liquid cavity metal end cap 5 by the screw 12. During the connection, the flange of the capsule 14 is pressed and fixed simultaneously to form a seal. The transparent liquid cavity end cap 1 has a groove at the flange compression position of the capsule 14. The groove size should be designed in combination with the size of the O-ring structure of the flange of the rubber bladder 14 to ensure a certain compression rate and filling rate. Specifically, the transparent liquid cavity end cap 1 is aligned with the transparent cylinder 2, the transparent cylinder 2 with the transparent partition 3, and the transparent partition 3 with the transparent air cavity end cap 4 through the outer stop. The 10 and 11 sealing rings are sealed and compressed by the double non-metallic end face sealing on the mating plane to prevent the medium inside the compensator from leaking to the outside. The liquid cavity pressure plate 7 and the air cavity pressure plate 8 arranged at the upper and lower ends of the test device are pressed and fixed by the screw 9 and the nut 13. The gas chamber metal end cap 6 is connected to the transparent gas chamber end cap via a plunger structure. A double non-metallic radial seal is arranged on the plunger, and the sealing ring prevents leakage of the medium inside the compensator to the outside. The gas chamber metal end cap 6 is fixed along the axis of the test device via a flange positioned between the gas chamber pressure plate 8 and the transparent gas chamber end cap 4. The capsule 14 is arranged within the cavity formed by the liquid chamber metal end cap 5, the transparent liquid chamber end cap 1, the transparent cylinder 2, and the transparent partition 3. It is fixed by connecting the two ends of the liquid chamber metal end cap 5 to the gasket 16 via the filling pipe 15. The air chamber metal end cap 6 consists of an end cap shell 6a, a welded connector 6b, a rotating nut 6c, a pin 6d, a ejector pin 6e, a sealing ring 6f, a sealing ring 6g, a valve core 6h, a spring 6i, a gasket 6j, and a retaining ring 6k. The welded connector 6b is welded to the end cap shell 6a to serve as an inflation air source interface. The rotating nut 6c and the ejector pin 6e are connected by the pin 6d, which is threaded together. The ejector pin 6e is connected to the... The pin 6d is connected by a small clearance fit, the rotating nut 6c is connected to the end cover housing 6a by a thread, the ejector pin 6e is inserted into the end cover housing 6a, and the two sealing rings 6f are compressed to prevent the medium from leaking to the outside during inflation. The valve core 6h is installed in the end cover housing 6a, and the pre-compression of the spring 6i presses the sealing ring 6g to prevent the medium in the air chamber from leaking to the outside after the ejector pin 6e is withdrawn. The gasket 6j and the retaining ring 6k serve as spring support and installation limit.

[0032] The filling tube 15 is a straight tube with multiple radial openings arranged along the axial direction. It serves as a flow channel for the liquid medium in the cavity and a limit for the contraction of the capsule 14. This keeps the deformation state of the capsule 14 under the same structure approximately consistent and avoids the capsule 14 contracting and blocking the opening, which could lead to incomplete vacuuming or media extrusion.

[0033] The partition shell 3 is a spherical plate with straight edges. Multiple through holes are arranged on the arc surface to serve as flow channels for the gas cavity medium, ensuring that the pressure on both sides of the partition is consistent when the gas cavity medium is compressed or expanded. The openings should take into account the required compensator pressure compensation rate performance to ensure that the cross-sectional area is sufficient for gas flow.

[0034] The transparent liquid cavity end cap 1, transparent cylinder 2, transparent partition 3, and transparent air cavity end cap 4 are made of transparent and visible acrylic organic glass material, ensuring that there is sufficient angle and space to observe the deformation of the capsule 14.

[0035] The liquid chamber metal end cap 5 and the gas chamber metal end cap 6 are made of metal materials as the external interfaces of the gas and liquid chambers, and the gasket 16 is made of non-metallic polytetrafluoroethylene material as a buffer pad between the filling tube 15 and the rubber bladder 14.

[0036] After the test device is assembled, the space enclosed by the outer side of capsule 14 and the shell is the device air chamber (corresponding to the compensator air chamber), and the space inside the capsule is the device liquid chamber (corresponding to the compensator liquid chamber). During the test, the air chamber should be pre-filled with inert gas at a certain pressure as a balancing power source.

[0037] After the test device is assembled, rotate the rotating nut 6c in the ejector inflation valve to drive the ejector pin 6e to open the valve core 6h. After the ejector inflation valve pre-fills the compensator air chamber with a certain pressure of gas medium through the external interface 6b, rotate the nut 6c in the opposite direction to remove the ejector pin 6e. The valve core 6h closes the air chamber under the action of the spring 6i. In order to ensure that the air chamber inflation volume is fixed, during the inflation process, the liquid chamber can be filled with gas greater than the air chamber pressure through the interface of the liquid chamber metal end cap 5 to ensure that the capsule is in a relaxed state and fits against the inside of the transparent liquid chamber end cap 1, the transparent cylinder 2 and the transparent partition 3. In this state, the air chamber volume is fixed.

[0038] Capsule 14 exists in two extreme states inside the shell: wrapped around the filling tube 15 and expanded to fit against the inner side of the shell. Gas or fluid is slowly filled into the compensator's liquid chamber from low to high pressure via the liquid chamber metal end cap 5 interface, or gas or fluid is released from high to low pressure until a certain pressure is reached. Capsule 14 exhibits contraction or expansion in either extreme state. Between the two extreme states, the only difference between the gas and liquid on both sides of capsule 14 is a small pressure difference (P) caused by the folds in the capsule body. 气 =P 液 +P 差When the pressure at the liquid chamber interface increases, the working fluid is forced into the compensator's liquid chamber, and the gas in the gas chamber is compressed (gas chamber pressure increases). The gas between capsule 14 and transparent partition 3 is forced through the through-hole channel of transparent partition 3 to the other side of the partition. After the pressure on both the gas and liquid sides of capsule 14 increases and reaches a new equilibrium point, it tends to stabilize. When the pressure at the liquid chamber interface decreases, the working fluid is squeezed out of the compensator's liquid chamber, and the gas in the gas chamber expands (gas chamber pressure decreases). The gas can be connected through the through-hole channel of the partition, and the pressure on both the gas and liquid sides decreases to a new equilibrium point and tends to stabilize. If the increase or decrease in the pressure at the liquid chamber interface is a uniform, slow, and abrupt process, then when the internal pressure and capsule deformation transition from one equilibrium state to another, all intermediate states are infinitely close to the equilibrium state. This process is a quasi-static process.

[0039] The visualization shell allows for visual assessment of the capsule body's deformation during the compensator's absorption or extrusion of the working fluid, the capsule body's state under different pressures, and the performance parameters that allow for the actual measurement of the compensator's extruded working fluid volume at different pressure stages.

[0040] By filling the compensator's air chamber with gas medium at different pressures through the air chamber needle inflation valve, the capsule deformation and compensator extrusion performance under different initial inflation pressures were observed. During the experiment, a shut-off valve and a pressure sensor were connected to the rear end of the needle inflation valve, and the air chamber pressure was monitored in real time through the needle inflation valve to determine the pressure gradient on both the gas and liquid sides of the capsule under different states.

[0041] By replacing the filling tube with different perforations and reassembling the perforated partition, and then conducting capsule movement tests, the influence of different perforation structures on the capsule's morphological changes can be verified.

[0042] After the gas chamber is initially filled with a certain pressure of gas, a shut-off valve and a pressure sensor can be added to the external interface. The external interface is closed by the shut-off valve, and the gas chamber pressure is monitored in real time by the pressure sensor during the capsule movement test.

[0043] This embodiment employs a segmented acrylic shell, fixed by long screws and pressure plates, enabling visual experimental verification of the rubber bladder deformation patterns and compensator suction-extrusion performance parameters under different flow channel arrangements, bladder shapes, and air chamber inflation pressures. This embodiment utilizes transparent acrylic as the test device shell, allowing direct visual observation of the rubber bladder deformation patterns during experiments. The segmented structure simplifies the structure of acrylic components, solving the problem of structural damage and cracking caused by excessive residual stress in large-size, integrated, complex structures using acrylic. The high proportion of transparent components allows for... The observation angle is wide. This embodiment adopts a segmented structure. By replacing a few components such as baffles with different flow channel arrangements, transparent gas cavity end caps with different heights, transparent liquid cavity end caps with different shapes, and capsules, the capsule deformation mode under different capsule shapes, baffle flow channel sizes, flow channel layouts, and gas cavity volumes can be realized, reducing the development cost. The compensator gas cavity in this embodiment is equipped with a pin inflation valve, which can be opened and closed manually to evacuate the compensator gas cavity and fill it with gas media of different pressures. This verifies the compensator's suction-extrusion performance parameters under different initial gas cavity filling pressures. It can also be used as a medium channel for real-time monitoring of gas cavity pressure during the experiment.

[0044] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make possible changes and modifications to the technical solutions of the present invention by utilizing the methods and techniques disclosed above without departing from the spirit and scope of the present invention. Therefore, any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solutions of the present invention shall fall within the protection scope of the technical solutions of the present invention.

Claims

1. A segmented rubber bladder visual compensator testing device, characterized in that... include: Transparent liquid chamber end cap (1), transparent cylinder (2), transparent partition (3), transparent air chamber end cap (4), liquid chamber metal end cap (5), air chamber metal end cap (6), liquid chamber pressure plate (7), air chamber pressure plate (8), screw (9), nut (13), rubber bladder (14), filling tube (15), and gasket (16); among which, The transparent liquid cavity end cap (1) is connected to the liquid cavity metal end cap (5); The metal end cap (6) of the air cavity is connected to the transparent end cap (4); The transparent liquid cavity end cap (1) and the liquid cavity metal end cap (5) together press and fix the flange of the rubber bladder (14) to form a seal; The transparent liquid cavity end cap (1) presses against the bottom of the transparent cylinder (2), the top of the transparent cylinder (2) presses against one side of the transparent partition (3), and the bottom of the transparent air cavity end cap (4) presses against the other side of the transparent partition (3). The liquid cavity pressure plate (7) presses against the transparent liquid cavity end cap (1), and the air cavity pressure plate (8) presses against the transparent air cavity end cap (4); One end of the screw (9) passes through the liquid chamber pressure plate (7) and the air chamber pressure plate (8) in sequence and is connected to the nut (13); The rubber bladder (14) is arranged in the cavity formed by the liquid cavity metal end cap (5), the transparent liquid cavity end cap (1), the transparent cylinder (2) and the transparent partition (3); One end of the filling tube (15) is connected to the metal end cap (5) of the liquid chamber, and the other end of the filling tube (15) is connected to the transparent partition (3) through the gasket (16).

2. The segmented rubber bladder visual compensator test device according to claim 1, characterized in that... It also includes: a first sealing ring (10) and a second sealing ring (11); wherein, The first sealing ring (10) and the second sealing ring (11) are both disposed between the transparent liquid cavity end cap (1) and the transparent cylinder (2).

3. The segmented rubber bladder visual compensator test device according to claim 1, characterized in that... Also includes: Screw (12); wherein the transparent liquid cavity end cap (1) is connected to the liquid cavity metal end cap (5) by the screw (12).

4. The segmented rubber bladder visual compensator test device according to claim 1, characterized in that: The air chamber metal end cap (6) includes an end cap housing (6a), a welded connector (6b), a rotating nut (6c), a pin (6d), a ejector pin (6e), a valve core (6h), and a spring (6i); wherein, The welding nozzle (6b) is connected to one side of the end cap housing (6a); The rotating nut (6c) is connected to the pin (6d) and the ejector pin (6e); The rotating nut (6c) is connected to the top of the end cap housing (6a), and the ejector pin (6e) is inserted into the end cap housing (6a); The valve core (6h) and the spring (6i) are both installed in the groove of the end cover housing (6a), and the valve core (6h) and the spring (6i) are pressed together.

5. The segmented rubber bladder visual compensator test device according to claim 4, characterized in that: The air chamber metal end cap (6) also includes a third sealing ring (6f); wherein, The third sealing ring (6f) is sleeved on the outer surface of the ejector pin (6e), and the third sealing ring (6f) is located between the ejector pin (6e) and the end cap housing (6a).

6. The segmented rubber bladder visual compensator test device according to claim 4, characterized in that: The air chamber metal end cap (6) also includes a fourth sealing ring (6g); wherein the fourth sealing ring (6g) is located in the groove of the end cap housing (6a), and the fourth sealing ring (6g) is disposed between the valve core (6h) and the end cap housing (6a).

7. The segmented rubber bladder visual compensator test device according to claim 4, characterized in that: The air chamber metal end cap (6) also includes a gasket (6j) and a retaining ring (6k); wherein, The washer (6j) and the retaining ring (6k) are both located at the bottom of the spring (6i), and the washer (6j) and the retaining ring (6k) serve as support and installation limit for the spring.

8. The segmented rubber bladder visual compensator test device according to claim 1, characterized in that: The transparent liquid cavity end cap is aligned with the transparent cylinder, the transparent cylinder is aligned with the transparent partition, and the transparent partition is aligned with the transparent air cavity end cap.

9. The segmented rubber bladder visual compensator test device according to claim 1, characterized in that: The metal end cap of the air chamber is fixed by a flange arranged in the gap between the air chamber pressure plate and the transparent air chamber end cap.

10. The segmented rubber bladder visual compensator test device according to claim 1, characterized in that: The inner cavity of the rubber bladder is the compensator liquid cavity, and the inner cavity formed by the outer surface of the rubber bladder, the transparent liquid cavity end cap, the transparent cylinder, the transparent air cavity end cap, and the air cavity metal end cap is the compensator air cavity. The transparent partition is provided with gas flow channels that penetrate both sides of the partition.

Images